Needle and thread connection force measuring device

Abstract

The utility model discloses a needle and thread connection force measuring device, which comprises a thread fixing piece used for fixing a plurality of needles and threads to be measured; the base is provided with a first end and a second end which are oppositely arranged; the fixing clamp is used for clamping the wire fixing piece, and the fixing clamp is arranged at the second end; the force application device is fixedly arranged on the fixing clamp and is arranged to provide force towards the first end; the fixing clamp is arranged to be capable of sliding back and forth relative to the second end when the to-be-detected needle and thread is pulled. The needle-thread connection force measuring device can efficiently and quickly measure the needle-thread connection force, and is simple and accurate to operate.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to a needle and thread connection force measuring device. Background Technology

[0002] In the medical industry, medical sutures are widely used in various surgeries, such as suturing wounds and repairing tissues during surgery, for slow-healing tissues (such as cartilage, ligaments, tendons, bronchi, esophagus, and grafts requiring long-term fixation), for hemostasis in vascular surgery, hernia repair, and in plastic surgery. Therefore, high-quality medical sutures are a strong guarantee for patients' physical and mental health, and meeting the required bonding strength is a key factor in ensuring the quality of medical sutures and a crucial guarantee for successful surgery. Suture bonding strength measurement is a specialized method for measuring the strength of the connection between the suture needle and the suture. This measurement is essential for ensuring the quality of surgical sutures and patient safety. However, some measuring instruments currently used have limitations. For example, some measuring devices can only fix one suture at a time for measurement, which is extremely inefficient for large-scale measurements; others require adjusting the clamps for different suture and needle types, making operation complex; still others have complex structures, making testing difficult and hindering widespread adoption.

[0003] Therefore, providing an efficient and accurate measuring device for measuring the bonding force of needle and thread is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This invention provides a device for measuring needle-thread connection force, which can efficiently and quickly measure needle-thread connection force, and is simple and accurate to operate.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a wire fixing component, used to fix multiple needle threads to be tested;

[0006] The base has a first end and a second end that are positioned opposite to each other.

[0007] A fixing clip for holding the wire fixing member is disposed on the second end;

[0008] A force-applying device is fixedly mounted on the fixing clamp and configured to provide a force toward the first end;

[0009] The fixing clamp is configured to slide back and forth relative to the second end when the needle thread to be tested is pulled.

[0010] Furthermore, slide rails are symmetrically arranged on both sides of the second end, and the slide rails extend along the direction from the first end to the second end, with the fixing sleeve disposed on the slide rails.

[0011] Furthermore, the fixing clamp includes an upper plate, a lower plate, and a spring. The upper plate and the lower plate are arranged opposite to each other and are hinged together at the middle. The spring is fixed between the upper plate and the lower plate and is located at one end of the fixing clamp. The other end of the fixing clamp detachably clamps the wire fixing member.

[0012] Furthermore, two sliding blocks are symmetrically arranged along the length direction at the bottom of the lower plate, and grooves are respectively provided on the opposite surfaces of the sliding blocks, with the slide rail matching within the grooves.

[0013] Furthermore, it also includes a restoring spring, which is disposed between the sliding block and the base, with one end fixedly connected to the side wall of the base and the other end being a free end.

[0014] Furthermore, it also includes a cord, one end of which is fixedly connected to the fixing clamp, and the other end of which is fixedly connected to the force-applying device.

[0015] Furthermore, a fixed pulley is provided on the first end, and the middle part of the rope is sleeved on the fixed pulley.

[0016] Furthermore, the inner walls of both the upper plate and the lower plate are provided with rough surfaces, and the rough surfaces are in contact with the fixing element.

[0017] Furthermore, a cylinder is provided on the lower plate, and the spring is sleeved on the cylinder.

[0018] Furthermore, two first fixing posts are symmetrically arranged in the middle of the lower plate, and through holes are provided on the first fixing posts; a second fixing post is provided in the upper plate, and rotating shafts are symmetrically arranged on both sides of the second fixing post, and the rotating shafts are rotatably matched in the through holes.

[0019] The beneficial effects of this utility model are as follows: This utility model provides a needle and thread connection force measuring device that can quickly and accurately measure the connection force of needles and threads, and is simple to operate; the structure of this utility model allows multiple needles and threads to be tested to be bound to the fixing component at one time, and then measured one by one, avoiding the inconvenience and inefficiency caused by existing measuring devices that can only fix one needle and thread at a time and require multiple adjustments; the needle and thread connection force measuring device provided by this utility model has a simple structure, ingenious design, low cost, and is easy to use. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the needle and thread connection force measuring device of this utility model;

[0021] Figure 2 This is a side view of the needle-thread connection force measuring device of this utility model;

[0022] Figure 3This is a top view of the needle-thread connection force measuring device of this utility model;

[0023] Figure 4 This is a left-side view of the needle-thread connection force measuring device of this utility model.

[0024] The reference numerals in the figures include:

[0025] 100—Base 200—Fixed pulley 300—Fixed clamp

[0026] 400—Line; 500—Force application device; 600—Fixing component

[0027] 700—Needle and thread to be tested; 110—First end; 120—Second end

[0028] 121—Slide rail 310—Upper plate 320—Lower plate

[0029] 330—Spring; 340—Fixed post; 350—Restoring spring

[0030] 360—Rough surface; 321—Sliding block; 322—First fixed post

[0031] 323—Through hole; 324—Second fixed post; 325—Rotating shaft

[0032] 370—Cylinder Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] like Figure 1-4 As shown, this utility model provides a needle and thread connection force measuring device, which mainly includes a base 100, a fixing clamp 300, a fixed pulley 200, a thread fixing component 600, a thread rope 400, and a force application device 500.

[0038] like Figure 1 As shown, the elongated base 100 has a first end 110 and a second end 120 disposed opposite to each other, and the first end 110 and the second end 120 are fixedly connected together. A fixed pulley 200 is fixedly disposed on the first end 110, and a fixing clip 300 is disposed on the second end 120. The fixing clip 300 and the second end 120 are slidably connected, and the fixing clip 300 can slide back and forth relative to the base 100 along the direction from the first end 110 to the second end 120. Specifically, slide rails 121 are symmetrically disposed on both side walls of the second end 120, and the slide rails 121 extend along the direction from the first end 110 to the second end 120. The fixing clip 300 is sleeved on the slide rails 121 and slides back and forth relative to the base 100 under the guidance of the slide rails 121.

[0039] like Figure 1 and Figure 2 As shown, the fixing clip 300 is a clip-shaped structure used to detachably clamp the wire fixing member 600. It mainly includes an upper plate 310, a lower plate 320, and a spring 330 disposed between the upper plate 310 and the lower plate 320.

[0040] Specifically, the lower plate 320 is close to the base 100 and slidably connected to it. Two elongated sliding blocks 321 are symmetrically fixed along the length of the bottom of the lower plate 320. Grooves are provided on the opposite surfaces of the two sliding blocks 321, which match the slide rail 121. The slide rail 121 reciprocates within the grooves, enabling the lower plate 320 to slide relative to the base 100. The contact surfaces of the sliding blocks 321 and the slide rail 121 are both smooth surfaces to minimize relative friction during their relative movement and avoid affecting the measurement results.

[0041] like Figure 1As shown, a restoring spring 350 is provided between the sliding block 321 and the base 100. One end of the restoring spring 350 is fixed to the side wall of the base 100, and the other end is a free end, which can restore the sliding block 321, which has moved close to the base 100, to its initial position. Therefore, during the measurement process, the sliding block 321 (or the fixing clamp 300) will not be disturbed by other excessive forces.

[0042] The upper plate 310 and the lower plate 320 are arranged opposite each other, and are hinged together at the middle. For example... Figure 1 As shown, two first fixing posts 322 are symmetrically arranged in the middle of the lower plate 320, and through holes 323 are provided on the first fixing posts 322; the upper plate 310 is provided with a second fixing post 324, and rotating shafts 325 are symmetrically arranged on both sides of the second fixing post 324. The rotating shafts 325 are rotatably matched in the through holes 323 to realize the hinge between the upper plate 310 and the lower plate 320.

[0043] like Figure 1 As shown, a spring 330 is installed inside one end (near the fixed pulley 200) of the upper plate 310 and the lower plate 320, and the two ends of the spring 330 are fixedly connected to the upper plate 310 and the lower plate 320, respectively. Specifically, a cylinder 370 is installed on the lower plate 320, and the spring 330 is sleeved on the cylinder 370. The cylinder 370 guides the spring 330 to prevent it from shifting under force during compression.

[0044] A wire-fixing post 340 is provided on the upper plate 310, located on the outer side wall of the upper plate 310. One end of the wire 400 is fixed to the wire-fixing post 340 of the upper plate 310, and the other end passes over the fixed pulley 200 and is fixedly provided with a force-applying device 500. The force-applying device 500 can be a weight or other device capable of continuously outputting a certain force.

[0045] like Figure 1 and Figure 2 As shown, the inner side of the other end (free end) of the upper plate 310 and the lower plate 320 is used to detachably fix the wire fastener 600. For example... Figure 1 As shown, rough surfaces 360 are provided on the inner walls of both the upper plate 310 and the lower plate 320. Multiple strip-shaped grooves are provided on the rough surfaces 360, and the extension direction of these grooves is perpendicular to the length direction of the lower plate 320. The rough surfaces 360 contact the fixing element 600 to increase the friction of the contact surface, firmly fixing the fixing element 600 and preventing relative slippage during measurement, which would affect the accuracy of the test operation and results.

[0046] like Figure 2 and Figure 3As shown, the fixing clamp 300 resembles a clamp structure. When the wire fixing member 600 is not fixed, one end of the upper plate 310 near the fixed pulley 200 is away from the lower plate 320, while the other end is close to the lower plate 320, causing the spring 330 to be in a compressed state. When the wire fixing member 600 is fixed, the upper plate 310 rotates around the hinge, further compressing the spring 330, until the upper plate 310 and the lower plate 320 are parallel. The force of the spring 330 is transmitted through the hinge to the other end of the fixing clamp 300, clamping and fixing the wire fixing member 600.

[0047] The wire securing component 600 can be a cylindrical elastomer structure (made of elastic material) used to wind and fix multiple test needle threads 700 (e.g., Figure 4 (As shown).

[0048] like Figure 4 As shown, during the measurement, multiple needle threads 700 to be tested are first wound around the fixing member 600, and then clamped within the upper plate 310 and lower plate 320. A force-applying device 500 of appropriate weight (meeting the critical value of the connection force standard of the needle threads 700 to be tested) is suspended from the rope 400. The tester holds and pulls one of the needle threads 700 to be tested for measurement. In the measurement state, when the tester pulls the needle thread 700 held by the fixing clamp 300, it can cause the fixing clamp 300 to slide relative to the base 100, transferring the pulling force of the tester to the rope 400. This causes the rope 400 to move under the forces at both ends (the pulling force of the force-applying device 500 and the pulling force of the fixing clamp 300), thus transmitting the force. Since the upper plate 310 and one end of the rope 400 connected to the upper plate 310 are both in a horizontal state, if the needle thread 700 to be tested breaks during the process of the tester pulling it, it means that the connecting force of the needle thread 700 to be tested is less than the weight of the force application device 500, and it is a defective needle thread; if the needle thread 700 to be tested does not break, it means that the connecting force of the needle thread 700 to be tested is greater than the weight of the force application device 500, and it is a qualified needle thread.

[0049] like Figure 1 and Figure 2As shown, the working process and principle of the needle-thread connection force measuring device provided by this utility model are as follows: Before testing, a force-applying device 500 of appropriate weight is suspended on the thread 400. The weight of the force-applying device 500 is the standard critical value of the connection force that the needle-thread 700 to be tested needs to meet. Multiple needle-threads 700 to be tested are wound around the thread fixing member 600, and then the thread fixing member 600 is fixedly clamped in the fixing clamp 300, in contact with the rough surface 360. At this time, the upper plate 310 and the lower plate 320 are parallel and opposite each other. The upper plate 310 and one end of the thread 400 connected to the upper plate 310 are both in a horizontal state, and there is no force between the fixing clamp 300 and the restoring spring 350. During the test, the tester pulls one of the needle threads 700 to be tested. The needle thread 700 drives the fixing clamp 300 to slide to the left relative to the base 100 through the fixing member 600. The sliding of the fixing clamp 300 simultaneously drives the rope 400 to move to the left and drives the force application device 500 to move upward. During this process, if the needle thread 700 being tested, pulled by the tester, breaks, it indicates that the weight of the force-applying device 500 is greater than the actual connecting force of the corresponding needle thread 700 (i.e., the force exerted on the needle thread 700 by the weight of the right-side force-applying device 500 through the rope 400 is greater than the needle thread connecting force of the needle thread 700 itself), and the needle thread 700 is a defective needle thread. If the needle thread 700 being tested, pulled by the tester, does not break, it indicates that the weight of the force-applying device 500 is less than the actual connecting force of the corresponding needle thread 700 (i.e., the force exerted on the needle thread 700 by the weight of the right-side force-applying device 500 through the rope 400 is not greater than the needle thread connecting force of the needle thread 700 itself), and the needle thread 700 is a qualified needle thread. During the testing process, the testers repeatedly tested each of the 700 needles to be tested until all the 700 needles to be tested on the fixing piece 600 were tested. The needles that did not break were considered qualified.

[0050] Most existing needle-thread connection force measuring devices can only fix one needle 700 at a time, and require adjustment of the device's clamps according to different thread and needle types, making operation cumbersome and reducing measurement efficiency due to the need to fix the needle 700 multiple times. The needle-thread connection force measuring device provided by this invention allows multiple needles 700 to be tested to be wound onto the fixing component 600 at once before testing, avoiding the tedious work of repeatedly assembling needles 700 in existing measuring devices that can only assemble one needle at a time. Furthermore, the needle-thread connection force measuring device of this invention has a simple structure, low manufacturing cost, and is easy to operate, fast, and accurate in measurement.

[0051] The above content is only a preferred embodiment of this utility model. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the concept of this utility model. As long as these changes do not depart from the concept of this utility model, they all fall within the protection scope of this utility model.

Claims

1. A needle-thread connection force measuring device, characterized in that, include: Wire fixing component (600) is used to fix multiple needle wires to be tested (700). The base (100) has a first end (110) and a second end (120) that are disposed opposite to each other. A clamping clip (300) for holding the wire fastener (600) is provided on the second end (120); A force-applying device (500) is fixedly mounted on the fixing clamp (300) and configured to provide a force toward the first end (110); The fixing clip (300) is configured to slide back and forth relative to the second end (120) when the needle thread to be tested (700) is pulled.

2. The needle-thread connection force measuring device according to claim 1, characterized in that, The two side walls of the second end (120) are symmetrically provided with slide rails (121), the slide rails (121) extend along the direction from the first end (110) to the second end (120), and the fixing clip (300) is sleeved on the slide rails (121).

3. The needle-thread connection force measuring device according to claim 2, characterized in that, The fixing clip (300) includes an upper plate (310), a lower plate (320) and a spring (330). The upper plate (310) and the lower plate (320) are arranged opposite to each other and are hinged to each other in the middle. The spring (330) is fixed between the upper plate (310) and the lower plate (320) and is located at one end of the fixing clip (300). The other end of the fixing clip (300) detachably clamps the wire fixing member (600).

4. The needle-thread connection force measuring device according to claim 3, characterized in that, Two sliding blocks (321) are symmetrically arranged along the length direction at the bottom of the lower plate (320). Grooves are respectively provided on the opposite surfaces of the sliding blocks (321), and the slide rail (121) is matched in the grooves.

5. The needle-thread connection force measuring device according to claim 4, characterized in that, Also includes: A restoring spring (350) is disposed between the sliding block (321) and the base (100), with one end fixed to the side wall of the base (100) and the other end being a free end.

6. The needle-thread connection force measuring device according to claim 3, characterized in that, Also includes: A cord (400), one end of which is fixedly connected to the fixing clamp (300) and the other end of which is fixedly connected to the force application device (500).

7. The needle-thread connection force measuring device according to claim 6, characterized in that, A fixed pulley (200) is provided on the first end (110), and the middle part of the rope (400) is sleeved on the fixed pulley (200).

8. The needle-thread connection force measuring device according to claim 5, characterized in that, The inner walls of the upper plate (310) and the lower plate (320) are provided with rough surfaces (360), and the rough surfaces (360) are in contact with the wire fixing member (600).

9. The needle-thread connection force measuring device according to claim 6, characterized in that, A cylinder (370) is provided on the lower plate (320), and a spring (330) is sleeved on the cylinder (370).

10. The needle-thread connection force measuring device according to claim 9, characterized in that, Two first fixing posts (322) are symmetrically arranged in the middle of the lower plate (320), and through holes (323) are provided on the first fixing posts (322); a second fixing post (324) is provided in the upper plate (310), and rotating shafts (325) are symmetrically arranged on both sides of the second fixing post (324), and the rotating shafts (325) are rotatably matched in the through holes (323).

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